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POLYVINYL PYRROLIDONE K90 For Synthesis
(average molecular weight 360000) Confirms to USP
| Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
|---|---|---|---|---|---|---|---|
| SC2436 | For Synthesis | 9003-39-8 | (C6H9NO)n | ~ 360000 | 3905.9910 | 60 Months |
Packings
| 500 g |
Physical Properties
| Physical state at 20 °C | Solid |
| Colour | Creamy White |
| Melting point/ Freezing point [°C] | 13.9 |
| Boiling point [°C] | 90.0 - 93.0 |
| Relative density, liquid (water=1) | 1.23 - 1.29 |
Specifications
| Appearance | White to yellowish white hygroscopic powder or flakes |
| Identification as per USP | Complies |
| K-value | 81.0 - 97.2 |
| pH (5% solution) | 4.0 - 7.0 |
| Assay (ex N) | 11.5 - 12.8% |
| Aldehydes | Max. 0.05% |
| Formic acid | Max. 0.5% |
| Hydrazine (N2H4) | Max. 0.0001% |
| Lead (Pb) | Max. 0.001% |
| Peroxide (as H2O2) | Max. 0.04% |
| Vinylpyrrolidone | NMT 0.001% |
| 2-Pyrrolidone | NMT 3.0% |
| Residue on ignition | Max. 0.1% |
| Water (by KF) | Max. 5.0% |
Safety Information and Hazard Symbols
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